Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2009
Forfattere
Sebastian EiterSammendrag
Det er ikke registrert sammendrag
Forfattere
Geir-Harald StrandSammendrag
Det er ikke registrert sammendrag
Forfattere
Geir-Harald StrandSammendrag
Det er ikke registrert sammendrag
2008
Sammendrag
About Norwegian lunch packages. Their history and current schemes for fruit and milk.
Sammendrag
Med et offentlig mål om at 15 % av matproduksjonen og -forbruket skal være økologisk i 2015, må norsk økologisk landbruk vokse raskt og mye. Da er det problematisk at mange økobønder slutter. Fra 2004 til 2007 meldte 646 bønder seg ut av Debios kontrollordning for økologisk produksjon. Nettotilveksten i samme periode var bare 177 bruk, slik at det i 2007 var 2611 økogårder i Norge. Andel økologisk jordbruksareal økte fra 3,4 til 3,9 %, noe som er for sakte i forhold til målsetningen.
Sammendrag
The content of sulphur (S) in grassland on 27 Norwegian organic farms with dairy or sheep production was investigated in 2001 and 2002. The forage content of S was below the norms (2 g S kg DM-1) for both plants and animals in a large proportion of the samples. The average S content in forage at dairy farms was 1.4 g S kg DM-1 and at sheep farms 1.5 g. Even on grasslands with low plant S content (<1 g S kg DM-1), S-fertilization did not increase yields and increased the plants’ S content only very slightly. No indications of S deficiency were observed on the dairy farms. For one sheep farm with a forage S content of 1.1 ± 0.1g S kg DM-1, brittle and short winter wool was reported.
Sammendrag
From 2002 to 06, the annual dropout rate of certified organic farmers averaged 7.3%. A project was started in 2007 to explore farmer’s reasons for opting out of certified organic production. Important factors seem to be public regulations including standards for organic farming, agronomy, economy, and farm exit. While many organic farmers with relatively small holdings have opted out, farmers with more land and larger herds tend to convert to organic agriculture. The trend towards larger-scale farms in organic than in conventional agriculture, encouraged by the design of the organic farming payments, challenges the organic principles of diversity and fairness. Means should be considered to ensure that small organic enterprises are also economically viable.
Sammendrag
The aim of the present work was to study to what extent N in mulched green manure herbage contributes to spring barley grain yield the subsequent year. The green manure herbage was either chopped and left on stubble (GML) or removed (GMR). On silty clay loam with spring incorporated green manure the subsequent barley grain yield was 10% higher with GML than with GMR. The additional grain N yield of 4 kg ha-1 with GML corresponded to only 3 % of N in above-ground green manure biomass. On loamy soil with late autumn incorporated green manure the treatments did not affect the grain yield the subsequent year. How large part of the N that was lost through leaching or gaseous emissions and how large part that was built into soil organic matter was not measured. However, this investigation confirms that potential N losses from mowed green manure might be large. Alternative ways of using the herbage should be found.
Populærvitenskapelig artikkel – Skog gjør Norge mer klimavennlig - SSB
Gro Hylen, Lars Sandved Dalen
Sammendrag
Nesten halvparten av Norges utslipp av klimagasser blir tatt opp igjen av skog, i trærnes stammer, greiner, nåler, blader og røtter. Men Kyotoavtalen gir Norge liten mulighet til å trekke skogens opptak av karbondioksid (CO2) fra i klimagassregnskapet. Effekten er også lite omtalt i offentlig debatt. Globalt står avskogingen for 17 prosent av verdens menneskeskapte klimagassutslipp.
Forfattere
Jens Kværner Petter SnilsbergSammendrag
Det er ikke registrert sammendrag